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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-30 21:06:53 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-31 10:53:37 +0000 |
| commit | 613b152c63e35095a929f9bb80441cbe91ff5e80 (patch) | |
| tree | 0427d88375de0be5f4f11dae661e5405d32d3431 | |
| parent | ccff9b51825b7335889b780bdf7de84ca803e291 (diff) | |
| download | linux-stable-613b152c63e35095a929f9bb80441cbe91ff5e80.tar.gz linux-stable-613b152c63e35095a929f9bb80441cbe91ff5e80.tar.bz2 linux-stable-613b152c63e35095a929f9bb80441cbe91ff5e80.zip | |
ARM: mmci: round down the bytes transferred on error
We should not report incomplete blocks on error. Return the number of
bytes successfully transferred, rounded down to the nearest block.
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | drivers/mmc/host/mmci.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 175a623a6a29..2d6de3e03e2d 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -14,6 +14,7 @@ #include <linux/ioport.h> #include <linux/device.h> #include <linux/interrupt.h> +#include <linux/kernel.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/highmem.h> @@ -289,13 +290,13 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ (status %08x)\n", status); if (status & MCI_DATACRCFAIL) { /* Last block was not successful */ - host->data_xfered = ((success - 1) / data->blksz) * data->blksz; + host->data_xfered = round_down(success - 1, data->blksz); data->error = -EILSEQ; } else if (status & MCI_DATATIMEOUT) { - host->data_xfered = success; + host->data_xfered = round_down(success, data->blksz); data->error = -ETIMEDOUT; } else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN)) { - host->data_xfered = success; + host->data_xfered = round_down(success, data->blksz); data->error = -EIO; } |